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Intermittent WU update error

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chrishudson
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Intermittent WU update error

Postby chrishudson » Fri May 26, 2017 1:53 pm

While chasing up another problem, I just noticed in my MXDiags log I am getting an intermittent error message which appears to be happening when updating Weather Underground.

Here is a grep of the error for the last few hours.

Code: Select all

2017-05-26 12:16:26.439 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 12:35:51.387 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 13:33:16.537 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 13:47:01.558 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 14:05:41.601 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 14:22:36.635 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 14:35:51.665 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 15:05:01.751 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 16:03:06.877 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
2017-05-26 16:39:46.920 WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)


There seems to be no pattern to the timing of this error. Sometimes its 5 mins apart, sometimes an hour or two apart.

There doesn't seem to be any errors or other obvious problems in the ftplog.txt at the same time this error appears and it doesn't seem to impact my WU data [or not obviously so]. Could this just be an intermittent network failure which can safely be ignored?

Latham, ACT, Australia
http://lathamweather.net

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steve
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Re: Intermittent WU update error

Postby steve » Fri May 26, 2017 8:39 pm

It does look like some kind of communication problem. It's a bit of an odd error message that MX is getting, it looks incomplete.
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radilly
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Re: Intermittent WU update error

Postby radilly » Sun Nov 05, 2017 9:49 pm

This isn't an urgent issue in my mind, but it does seem to occur pretty regularly - maybe on the order of 10 a day on average. I was looking at a couple of posts on this again and wondering if there was some other tracking that could be turned on. Looks very likely that within a 24 hour period I'd most likely capture it.

It does indeed look incomplete (not very informative).

FYI ... I looked for all "WU update" messages and found 3 unique types:

Code: Select all

WU update:    at System.Net.WebConnection.HandleError(WebExceptionStatus st, System.Exception e, System.String where)
WU update: The Task was canceled
WU update: No route to host

(in order of frequency).

Bob

Refs:
viewtopic.php?f=27&t=16510
viewtopic.php?f=27&t=16568

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steve
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Re: Intermittent WU update error

Postby steve » Mon Nov 06, 2017 2:40 pm

The only additional logging you could turn on in MX is debug logging. If that doesn’t show anything, then you could try to use something external, e.g. an http proxy. That might show something, depending on what the problem actually is.
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mcrossley
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Re: Intermittent WU update error

Postby mcrossley » Mon Nov 06, 2017 9:56 pm

steve wrote:... then you could try to use something external, e.g. an http proxy

I use Fiddler for this sort of thing - I last used it to see if CMX was url encoding Weather Underground http calls - it really is an excellent tool when you need it.

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steve
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Re: Intermittent WU update error

Postby steve » Tue Nov 07, 2017 3:55 pm

Yes, Fiddler is/was my tool of choice too.
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